Abstract
Prosthetic treatment is difficult in patients with jaw deformities. In particular, placement of an implant in the mandibular molar region is difficult when there is a shortage of bone mass. Prosthetic treatment alone often does not result in successful restoration of the occlusion in such patients. We describe our good results obtained by dental implant placement in a bone fragment gap after sagittal split ramus osteotomy （SSRO） in a patient with mandibular prognathism and bone resorption in mandibular molar region. A 63-year old man was referred to our hospital for improvement in occlusal function and to receive dental implant treatment. The clinical diagnosis was mandibular molar loss with bone resorption and mandibular prognathism on computed tomography and radiography. With the patient under general anesthesia, SSRO and dental implant placement in the bone fragment gap created by sagittal split ramus osteotomy were performed. Six months after surgery, the symptoms of inferior alveolar nerve paralysis improved, and the dental implant in the bone was stable. Eighteen months after prosthetic treatment, occlusal function showed improvement, with no complications.
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